In a new study conducted on bats it was found that they used polarized light to find their way around at dusk. These findings are a result of a study conducted by Stefan Grief of the Sensory Ecology Group at the Max Planck Institute for Ornithology in Germany and can be found in Nature Communications.

According to earlier studies, bats used echolocation to navigate at night. They emitted sounds into the environment and used the resulting echoes to avoid any obstacles in their way as also to find their prey. Echolocation however does not work beyond 160 feet and bats should therefore rely on other...